From: YOSHIFUJI Hideaki Date: Wed, 21 Dec 2005 13:58:01 +0000 (+0900) Subject: [IPV6]: Don't select a tentative address as a source address. X-Git-Tag: firefly_0821_release~39691^2~2^2^2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6b3ae80a63e47f6e97d68a1ddd520e3509e62821;p=firefly-linux-kernel-4.4.55.git [IPV6]: Don't select a tentative address as a source address. A tentative address is not considered "assigned to an interface" in the traditional sense (RFC2462 Section 4). Don't try to select such an address for the source address. Signed-off-by: YOSHIFUJI Hideaki --- diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index f6ead6a843e3..fd03c3944366 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -908,11 +908,18 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev, score.addr_type = __ipv6_addr_type(&ifa->addr); - /* Rule 0: Candidate Source Address (section 4) + /* Rule 0: + * - Tentative Address (RFC2462 section 5.4) + * - A tentative address is not considered + * "assigned to an interface" in the traditional + * sense. + * - Candidate Source Address (section 4) * - In any case, anycast addresses, multicast * addresses, and the unspecified address MUST * NOT be included in a candidate set. */ + if (ifa->flags & IFA_F_TENTATIVE) + continue; if (unlikely(score.addr_type == IPV6_ADDR_ANY || score.addr_type & IPV6_ADDR_MULTICAST)) { LIMIT_NETDEBUG(KERN_DEBUG